360mm Astronomical Telescope Finder Scope Base, Finder Scope Base, Telescope Mount, Aluminium, Suitable for Modifying Astronomical Telescopes, Red, 1 Piece Sturdy and durable: Made of aluminium alloy, this finder scope base is lightweight yet sturdy and durable to ensure long-term use without fading. EXPANSION SLOT The interior of the expansion slot features a standard 60 degree guide slot, allowing you to easily install various accessories such as guide rail, guide box or finder scope. Improve your astronomical telescopes: Designed for modifying astronomical telescopes. High-quality material and design: Made with precision and attention to detail, this finder scope base is made of high-quality aluminium alloy, providing both reliability and exceptional performance.